Hotline: (800) 421-4219

Penta Laboratories maintains an extensive inventory of replacement vacuum tubes for equipment that dates back 75 years or more. We have over 6,000 different NOS part numbers in stock. Many of these are electron tubes that are new old stock, having never been used, and are provided with test reports.

This is only a partial list of the products that Penta Laboratories typically carries, please contact us directly to inquire about other tube types

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